NDLI: Some Aspects on Thermal Degradation of Organo-Layer Silicates

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Mervat, S. Hassan El-Shall, Hassan Beaty, Chearly
Copyright Year	2008
Abstract	Naturally occurring silicates, like montmorillonite (MMT) have received much attention as reinforcement materials for polymers because of their potentially high aspect ratio and unique intercalation (exfoliation) characteristic. Montmorillonite is of particular interest because it has a layered structure typically about 1nm in thickness and a high aspect ratio ranging from 100 to 1500 that, with proper exfoliation, can lead to platelets with high stiffness and strength dispersed in the polymer matrix. In this paper, we studied the delamination of Egyptian bentonite and Cloisite Na+ (USA) using different onium ions. The organo-clays were characterized by X-ray diffraction (XRD), Differential Scanning Calorimeter (DSC), Derivativethermogravimetry (TGA), Thermogravimetry (TG), and Infrared spectroscopy (IR). Understanding the relationship between molecular structure of the modifying surfactant and the thermal stability of the organically modified layered silicates is critical to its processing and subsequent applications. Therefore, special emphasis is given to the study of the thermal degradation of the modified clays. The results of the thermal degradation of montmorillonite (MMT) and alkyl quaternary ammonium montmorillonite (OMMT) are discussed in this paper.
Sponsorship	Nanotechnology Institute
Starting Page	67
Ending Page	74
Page Count	8
File Format	PDF
ISBN	0791842916
DOI	10.1115/MN2008-47038
e-ISBN	1791838145
Volume Number	ASME 2008 2nd Multifunctional Nanocomposites and Nanomaterials
Conference Proceedings	ASME 2008 2nd Multifunctional Nanocomposites and Nanomaterials International Conference
Language	English
Publisher Date	2008-01-11
Publisher Place	Sharm El Sheikh, Egypt
Access Restriction	Subscribed
Subject Keyword	Infrared spectroscopy Thermogravimetry X-ray diffraction Ions Stiffness Platelets Polymers Surfactants Delamination Thermal stability
Content Type	Text
Resource Type	Article

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